Help me ! Im diamond :(

Hello, it's been a couple of months that I haven't play on the server Cubecraft because I got banned for using antiknockback, and I'm going to be honest, I'm not going to use any type of excuses like "it wasn't me playing", I did use that hack but I regret of using it and my account is Diamond, please I'm really sorry and I would never use any type of illegal programs.
But I really need my account back please, I follow you guys on twitter and you guys do a great job.
Thank You.